GUI: Add countdown & cancel to install auto-reboot

Provide a countdown from 5 sec for the automated reboot after install.
Include a cancel button to interrupt the process.

Change-Id: Ib5e1447918adfde45eba361c088800812b690890
diff --git a/gui/theme/common/watch.xml b/gui/theme/common/watch.xml
index fd60487..d7bba84 100644
--- a/gui/theme/common/watch.xml
+++ b/gui/theme/common/watch.xml
@@ -734,6 +734,63 @@
 					<action function="page">clear_vars</action>
 				</actions>
 			</action>
+
+			<action>
+				<conditions>
+					<condition var1="tw_install_reboot" var2="1"/>
+					<condition var1="tw_operation_status" var2="0"/>
+					<condition var1="tw_reboot_system" var2="1"/>
+				</conditions>
+				<actions>
+					<action function="set">tw_sleep=%tw_sleep_total%</action>
+					<action function="page">flash_sleep_and_reboot</action>
+				</actions>
+			</action>
+		</page>
+
+		<page name="flash_sleep_and_reboot">
+			<template name="page"/>
+
+			<template name="statusbar"/>
+
+			<text style="text_m">
+				<placement x="%col1_x_left%" y="%row1_header_y%"/>
+				<text>{@install_reboot=Rebooting in %tw_sleep% second(s)}</text>
+			</text>
+
+			<template name="console"/>
+
+			<template name="progress_bar"/>
+
+			<button style="main_button_half_height">
+				<condition var1="tw_sleep" op="&gt;" var2="0"/>
+				<placement x="%col1_x_right%" y="%row13_y%"/>
+				<text>{@cancel_btn=Cancel}</text>
+				<actions>
+					<action function="set">tw_install_reboot=0</action>
+					<action function="page">flash_done</action>
+				</actions>
+			</button>
+
+			<action>
+				<conditions>
+					<condition var1="tw_sleep" var2="tw_sleep_total"/>
+					<condition var1="tw_install_reboot" var2="1"/>
+				</conditions>
+				<action function="sleepcounter">%tw_sleep_total%</action>
+			</action>
+
+			<action>
+				<conditions>
+					<condition var1="tw_sleep" var2="0"/>
+					<condition var1="tw_install_reboot" var2="1"/>
+				</conditions>
+				<actions>
+					<action function="sleep">50000</action>
+					<action function="set">tw_back=main2</action>
+					<action function="page">reboot_system_routine</action>
+				</actions>
+			</action>
 		</page>
 
 		<page name="flashimage_type">